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Clunk on gearchange

M

mutley666

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Joined
May 8, 2005
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8
<div class="bbWrapper">My 300TD 124 clunks on gearchanges( autobox) I used to have a 190 in the UK and I seem to remember it was a bush where the prop shafts connect in the center?<br /> My thoughts are gearbox mounts or this prop shaft bush?<br /> Any ideas please?<br /> Thanks.</div>
 
<div class="bbWrapper">Could also be engine mounts.</div>
 
<div class="bbWrapper"><blockquote data-attributes="" data-quote="wobbly" data-source="post: 998820" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=998820" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-998820">wobbly said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Could also be engine mounts. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Totally agree... Or the flex (donut) of the shaft... There are two... Usually the front, the one near by the gearbox fails...</div>
 
<div class="bbWrapper"><blockquote data-attributes="" data-quote="kole301" data-source="post: 999716" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=999716" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-999716">kole301 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Totally agree... Or the flex (donut) of the shaft... There are two... Usually the front, the one near by the gearbox fails... </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote><br /> Is it best to replace both of these and is it easy to do?</div>
 
<div class="bbWrapper">dont forget the subframe bushes too</div>
 
<div class="bbWrapper"><blockquote data-attributes="" data-quote="NW_Merc" data-source="post: 1000187" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1000187" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1000187">NW_Merc said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Is it best to replace both of these and is it easy to do? </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Change just the defectif ones... +/- one hour DIY job for each...</div>
 
<div class="bbWrapper">Thanks for advice.<br /> How can I check if the engine mounts are dead?<br /> When you describe the donuts, does this mean the rubber things that the propshaft goes through?</div>
 
<div class="bbWrapper">The do-nuts are at each end of the propshaft ( and sometimes one halfway along , joining two halves of the propshaft together but allowing for some flexing ) .<br /> <br /> The shaft does not actually 'go through' them , although it could look as if it does , rather a flange on the end of the shaft couples onto one side of the do-nut and either the gearbox or diff flange couples to the other side .<br /> <br /> As long as you have ramps or axle stands enabling you to work safely under the car , they are not difficult to change on the driveway .</div>
 
<div class="bbWrapper"><blockquote data-attributes="" data-quote="BlackC55" data-source="post: 1000192" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1000192" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1000192">BlackC55 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> dont forget the subframe bushes too </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote> <br /> As Olly said, better look at those <img src="/styles/mbclub/smilies/thumb.gif" class="smilie" loading="lazy" alt=":thumb:" title="Thumb :thumb:" data-shortname=":thumb:" /></div>
 
<div class="bbWrapper"><b>C240 sport rear end clunk</b><br /> <br /> Gent's<br /> <br /> I am new to this post, I have read and learnt a lot from these forums, but I would like to ask for your help.<br /> I have recently purchased a 99 C240 SPORT 5g Auto, 89,000.<br /> <br /> I have had rear end clunk and jerk issue when the car is on over run under 10 mph, and shifting down. (Whne overrun a whining sound is also present.)<br /> <br /> I have:<br /> <br /> ATF\Filter Change<br /> Diff Change<br /> Replaced Propshaft, new Couplings, New Centre Bush.<br /> Replace engine and gear box mounts.<br /> <br /> I still have this annoying jerk, and clunk every time I light throttle under 10 mph, or let the car downshift into 1st when slowing down, not braking.<br /> <br /> Any one got any ideas ?<br /> <br /> Many Thanks</div>
 
<div class="bbWrapper">You would be better off starting a new thread on this!<br /> <br /> Welcome to the forum btw....</div>
 
<div class="bbWrapper">Could well be the propshaft coupling mutley as mine used to clonk. It was the centre one on mine that needed changing and i've added a link to my thread in case it's useful:<br /> <br /> <a href="http://www.mbclub.co.uk/forums/engine/90411-w124-propshaft-coupling-part-number.html" target="_blank" class="link link--external" rel="nofollow ugc noopener">http://www.mbclub.co.uk/forums/engine/90411-w124-propshaft-coupling-part-number.html</a></div>
 
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